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Doug Berger 628c79faa1 mm/cma.c: fail if fixed declaration can't be honored 
[ Upstream commit c633324e311243586675e732249339685e5d6faa ]

The description of cma_declare_contiguous() indicates that if the
'fixed' argument is true the reserved contiguous area must be exactly at
the address of the 'base' argument.

However, the function currently allows the 'base', 'size', and 'limit'
arguments to be silently adjusted to meet alignment constraints.  This
commit enforces the documented behavior through explicit checks that
return an error if the region does not fit within a specified region.

Link: http://lkml.kernel.org/r/1561422051-16142-1-git-send-email-opendmb@gmail.com
Fixes: 5ea3b1b2f8ad ("cma: add placement specifier for "cma=" kernel parameter")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Yue Hu <huyue2@yulong.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-06 20:27:19 +02:00
..
kasan A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
backing-dev.c writeback: synchronize sync(2) against cgroup writeback membership switches 2020-04-06 18:12:57 +02:00
balloon_compaction.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
bootmem.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
cleancache.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
cma_debug.c mm/cma_debug.c: fix the break condition in cma_maxchunk_get() 2020-04-06 19:01:41 +02:00
cma.c mm/cma.c: fail if fixed declaration can't be honored 2020-04-06 20:27:19 +02:00
cma.h A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
compaction.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
debug-pagealloc.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
debug.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
dmapool.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
early_ioremap.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
fadvise.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
failslab.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
filemap.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
frame_vector.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
frontswap.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
gup.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
highmem.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
hpa.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
huge_memory.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
hugetlb_cgroup.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
hugetlb.c hugetlbfs: on restore reserve error path retain subpool reservation 2020-04-06 19:01:37 +02:00
hwpoison-inject.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
init-mm.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
internal.h A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
interval_tree.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
io_record.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Kconfig A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Kconfig.debug A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
kmemcheck.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
kmemleak-test.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
kmemleak.c mm/kmemleak.c: fix check for softirq context 2020-04-06 20:16:21 +02:00
ksm.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
list_lru.c mm/list_lru.c: fix memory leak in __memcg_init_list_lru_node 2020-04-06 19:02:54 +02:00
maccess.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
madvise.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
memblock.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
memcontrol.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
memory_hotplug.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
memory-failure.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
memory.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
mempolicy.c mm: mempolicy: make mbind() return -EIO when MPOL_MF_STRICT is specified 2020-04-06 13:43:53 +02:00
mempool.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
memtest.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
migrate.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
mincore.c mm/mincore.c: make mincore() more conservative 2020-04-06 18:12:28 +02:00
mlock.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
mm_init.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
mmap.c Revert "coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping" 2020-04-06 22:47:46 +05:30
mmu_context.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
mmu_notifier.c mm/mmu_notifier: use hlist_add_head_rcu() 2020-04-06 20:16:25 +02:00
mmzone.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
mprotect.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
mremap.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
msync.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
nobootmem.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
nommu.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
oom_kill.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
page_alloc.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
page_counter.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
page_ext.c mm/page_ext.c: fix an imbalance with kmemleak 2020-04-06 14:22:59 +02:00
page_idle.c mm/page_idle.c: fix oops because end_pfn is larger than max_pfn 2020-04-06 19:14:16 +02:00
page_io.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
page_isolation.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
page_owner.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
page-writeback.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
pagewalk.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
percpu-km.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
percpu-vm.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
percpu.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
pgtable-generic.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
process_vm_access.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
quicklist.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
readahead.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
rmap.c mm/rmap: replace BUG_ON(anon_vma->degree) with VM_WARN_ON 2020-04-06 11:16:40 +02:00
shmem.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
showmem_extra.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
slab_common.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
slab.c mm/slab.c: kmemleak no scan alien caches 2020-04-06 14:23:23 +02:00
slab.h A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
slob.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
slub.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
sparse-vmemmap.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
sparse.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
swap_cgroup.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
swap_state.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
swap.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
swapfile.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
truncate.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
usercopy.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
userfaultfd.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
util.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
vmacache.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
vmalloc.c mm/vmalloc.c: fix kernel BUG at mm/vmalloc.c:512! 2020-04-06 14:23:12 +02:00
vmpressure.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
vmscan.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
vmstat.c mm, vmstat: make quiet_vmstat lighter 2020-04-06 20:25:57 +02:00
workingset.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
zbud.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
zpool.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
zsmalloc.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
zswap.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30